The buttons were made using a simple technique. With leftover yarn from the scarf. There should be more than enough if you have good tension.

Cut 3 lengths of yarn at around 8″
3 x 2″ diameter felt circles, or big enough to cover the buttons as pictured.

Tie knots in the centre to make a bobble. Split the yarn so you have 4 tails (see picture below) and thread each through the 4 eyes of the button.

Using small stitches, make a running stitch around circles of felt. Do not knot yet.

Pull slightly on the thread so that it creates a slight dome shape. Place in the prepared knotted wool and button. Pull the thread and make sure the thread covers the back of the button centrally. Tie off the thread after sewing over the felt and yarn to secure the back, as these will be pulled at when used.

Using the picture to help you with placement, use the tails of the buttons to tie onto the rib of the scarf. Making sure they line up with the natural holes created by your stitches.